“CLINICAL SYMPTOMS AND RESPIRATORY COMPLICATIONS AMONG CHILDREN WITH SEASONAL INFLUENZA AT NATIONAL CHILDREN’S HOSPITAL, VIETNAM, 2020-2021: SEASONAL INFLUENZA AT NATIONAL CHILDREN’S HOSPITAL, VIET NAM”. 2021. The Southeast Asian Journal of Tropical Medicine and Public Health 52 (6): 790-99. https://journal.seameotropmednetwork.org/index.php/jtropmed/article/view/558.